Improvement in reflectors



2 Sheets-Sheet 1.

Reflector}.

No; 215,448. Patented May 20, 1879;

L I i lllliu ..I\ J. I

s M G B, Z JL 2 N. PETERS, PHOTO-L THOGRAPHER WASHINGTON D C I.-P.FRINK. Reflector.

2 Sheets-Sheet 2.

Patented May 20, 1879.

N. PEraRS. PHOTO-LITMOGRAPFER WASH NGTON D C UNITED STATES PATENTOFFICE.

ISAAC P. FRINK, OF NEW YORK, N. Y.

IMPROVEMENT IN REFLECTORS.

Specification forming part of Letters Patent N0. 215,44 8, dated May 20,1879; application filed February 24, 1879.

- partly in section, shown in connection with an electric light. Fig. 2is a sectional elevation of the sameconnected with astreet-lamp. Figs.3, 4, and 5 are detailed views.

My invention relates to double reflectors, one above and one below theburner, for the purpose of directing and increasing the light in anygiven direction, near or remote from the burner; and consists inadjustable reflectors having surfaces of the same or varying anglesrelatively to the burner, and being flat, an gular, or curvilinear,according to the effect to be produced.

The reflectors may be of glass, molded or blown to the shape required,and silvered in any ordinary way; or the glass may be applied insections or panels, or they may be made of metal silvered, nickeled, orin any other way prepared for use as reflectors, and they are designedto be used with electric, gas, or other light; and the arrangement andadjustability is substantially the same in each case. They will be maderound, square, or other shape in general outline, to suit the place theyare to occupy.

In the construction of my reflectors, the upper one, A, ordinarily isconcave, and has a .less oblique angle than the lower reflector, G,

which is convex. The particular line of the angles of either of themwill be determined by the direction in which it is desirable to send offthe rays of light.

These reflectors are made adjustable rela tively to-the burner K and toeach other by being placed on the rods D. These rods in Fig. l are apart of the frame of the electric apparatus for using electric light.The reflectors have the tubes E made to slip on the rods, in which tubesis an insulator, F, of rubber or other material, to prevent anyattraction of electricity from the burners by contact of the reflectorswith the apparatus. The reflectors are secured to the rods by theset-screws Gr, having inside of the tube a gib, H, with one end loose,to distribute the pressure of the end of the screw on the side of theinsulator.

Clock-work or some other method of hanging or supporting the reflectorsand of renderin g them adjustable may be employed, and the same resultsbe secured.

The aperture B in the reflectors will be large enough so that the burnermay be lighted from below the lower one by passing the match up throughthe aperture, and also to let a portion of the light fall directly downaround the standard of the burner, or, in the upper one,

to let it shine up through the aperture, and also to prevent the flamefrom coming in direct contact with the reflector to injure it.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination of a concave and a convex reflector, having each an'opening in the center for ventilation, and for distributing the lightabove and below the reflectors, and arranged one above and the otherbelow the burner, substantially as and for the purposes specified.

2. The combination of the two reflectors,

rendered adjustable relatively to the burner and to each other by somesuitable apparatus, substantially as and for the purpose set forth.

3. The adjustable reflectors A and G, having the tubes E and set-screwsG, in combination with the rods D, substantially as described and shown.

4. ,The combination of the adjustable reflectors A and 0, having thetubes E, insulators F, set-screws G, and gibs H, with the rods Dsubstantially as and for the purpose specified ISAAC P. FRINK.

Witnesses:

HORACE HARRIS, J. W. BONNEL.

